Rapid Intensification Guidance AL172021 210922 12UTC Storm Located at : 23.40 38.80 Guidance run with Vmax [kt]: 30. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 30.00 F 12-H DELTA VMAX [kt] -5.00 U CORE SIZE [km] 11.80 F CONVECTION <-50C [%] 0.00 VU CONVECTION <-60C [%] 0.00 U IR CORE SYMMETRY [K] 1.00 F TC SIZE [%] 66.00 F Forecast Conditions: Predictor Value Favorable(F)/Unfavor(U) 6 12 18 24 36 48 60 72 6 12 18 24 36 48 60 72 Wind Shear [kt] 20.0 25.1 29.3 28.4 38.8 37.5 46.4 34.7 N N N N U U VU U Ocean Heat [kJ/cm^2] 18.0 19.0 23.0 22.0 12.0 11.0 3.0 0.0 U U U U U U U U Potential [kt] 99.4 99.4 101.2 103.0 106.6 101.2 92.7 88.0 N N N N N N N N 200mb Divg [10^6/s] -12.0 -10.0 9.0 1.0 9.0 8.0 3.0 4.0 U U U U U U U U Humidity 700-500 hPa 40.0 40.0 42.0 44.0 47.0 50.0 51.0 53.0 VU VU VU VU VU U U U T Advectio [10^6 K/s] 3.0 4.0 5.0 3.0 6.0 6.0 10.0 11.0 N N N N N N U U Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.0% 0.1% 0.1% 25kt / 24h 0.2% 0.4% 0.3% 30kt / 24h 0.2% 0.1% 0.2% 35kt / 24h 0.0% 0.1% 0.0% 40kt / 24h 0.0% 0.1% 0.0% 45kt / 36h 0.0% 0.6% 0.3% 55kt / 36h 0.0% 0.1% 0.0% 55kt / 48h 0.1% 0.1% 0.1% 70kt / 48h 0.1% 0.1% 0.1% 65kt / 72h 0.0% 0.1% 0.0% Decapatation Guidance NOT VALID Thermodyanmic Conditions Unfavorable for Intense Typhoons